How Can I Apply Gold to a Microscale Cantilever?

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    Cantilever Gold
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Discussion Overview

The discussion revolves around methods for applying gold to a microscale cantilever, exploring various techniques and considerations related to coating thickness and costs. Participants share their experiences and inquire about specific methods such as sputtering and evaporation.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant asks how to apply gold specifically to a microscale cantilever.
  • Another participant suggests sputtering as a potential method and inquires about previous attempts and the required coating thickness.
  • A participant expresses intent to use sputtering but seeks information on the associated costs.
  • Discussion includes considerations about the cost of lab use and materials, with one participant noting that university facilities may offer the most economical option.
  • Concerns are raised about the quality of gold layers produced by different methods, with a preference expressed for evaporation over sputtering due to quality considerations, despite potential thermal stress issues.

Areas of Agreement / Disagreement

Participants express varying opinions on the best method for applying gold, with some favoring sputtering and others advocating for evaporation. The discussion remains unresolved regarding the optimal technique and associated costs.

Contextual Notes

Participants mention specific costs related to lab use and materials, but details on the exact requirements for coating thickness and quality are not fully resolved. There is also uncertainty about the implications of thermal stress from different application methods.

Who May Find This Useful

Researchers and students interested in microfabrication techniques, particularly those focused on materials application in microscale devices.

sabeha
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hi everyone;

how can I put gold only on my microscale cantilever ?

Merci :)
 
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sabeha said:
hi everyone;

how can I put gold only on my microscale cantilever ?

Merci :)

Would sputtering work? What have you tried? How thick do you need the coating?
 
thanks I think that is what I will do ... how much that will cost?
for the thick coating we don't need a very large one sorry for my english
 
sabeha said:
thanks I think that is what I will do ... how much that will cost?
for the thick coating we don't need a very large one


sorry for my english

Depends where you do it? University will most likely be cheapest, unless you want bulk fabrication.

At my University it cost about $100/hr for lab use (with a max charge of only 4hrs), about $80 for a gram of gold and you'd have to be trained on the evaporator. The only sputter machine in our lab with a free to use gold source leaves low quality gold layer. The best option here at CU is to evaporate, I think in general evaporation leaves a higher quality layer; however, it does cause more thermal stress depending on the apparatus, distance between target and source...
 

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